Mixdown Choice

Interestingly in the DVD after working on the Mixdown with the SSL console there's a graphic that comes up and says there was a decision made to redo the mix with a DAW.
I'd love to see a further explanation of why it was decided to mix All Our Yesterdays that way.
Was it a monitoring issue? easier to do automated changes? more flexibility or just familiarity with the surrounds?
Can Alan comment on his decision?
Would also like to see some more tech sheets, such as what mics were used on the drums, guitars? and other instruments.

I guess there's a whole heap more stuff that could fill another set of DVDs!